how to vertical the text and control the line spacing by QPainter::drawText(rect,text）

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how to vertical the text and contro...

August 1, 2011

dxwang

Lab Rat
20 posts

I have tried to add ‘\n’ to each character, but I find line spacing is too large， how I can control this line spacing.
painter->drawText (position,“Qt by \n Trolltech”);

thanks

6 replies

August 1, 2011

Gerolf

Area 51 Engineer
3210 posts

You can try to modify the different parameters of a QFont.

MyWidget::paintEvent(...)
{
QPainter p(this);
QFont ft = font();
ft.xxx();
p.setFont(ft);
}

But I’m not 100% sure, whether you can change line height…

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Nokia Certified Qt Specialist.
Programming Is Like Sex: One mistake and you have to support it for the rest of your life. (Michael Sinz)

August 1, 2011

dxwang

Lab Rat
20 posts

thanks Gerolf. the font size is 16, it can be changed by user. it means that the text size is ok, just the line spacing is too large，because of “\n”. but how to reset line spacing.

August 1, 2011

Gerolf

Area 51 Engineer
3210 posts

I meant the line height of the font, which is typically ascent + descent + leading (look at QFontMetrics) and which is located in the font properties.

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Nokia Certified Qt Specialist.
Programming Is Like Sex: One mistake and you have to support it for the rest of your life. (Michael Sinz)

August 1, 2011

dxwang

Lab Rat
20 posts

ok, I see.

August 1, 2011

dxwang

Lab Rat
20 posts

I am sorry, I still don’t find that which function can set line spacing in QFont. can someone help me .

January 24, 2012

pratik041

Lab Rat
346 posts

dxwang wrote:
I am sorry, I still don’t find that which function can set line spacing in QFont. can someone help me .

Did you find the answer. I am searching something similar ?

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Pratik Agrawal

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August 1, 2011